convert output to list(and nested dictionary)

max scalf oracle.blog3 at gmail.com
Wed Jul 22 04:14:44 CEST 2015


Thank you all.  I have gotten some great response, so i am going to play
around with this and see how it turns out.  As Pablo pointed out, best way
to learn is to try it out and see how it goes.  Thanks again and i will
keep the list posted.

On Tue, Jul 21, 2015 at 8:03 PM, Pablo Lucena <plucena24 at gmail.com> wrote:

> ​str.split and re are a nice quick way to do it:
>
> >>> def get_data(data):
> import re
> port_re = re.compile(r'(\w+)\((\S+-\S+)\)')
> cidr_re = re.compile(r'\[(.*?)\]')
> _, proto_port, cidr = data.rsplit(":", 2)
> port_match = port_re.search(proto_port)
> proto, port = port_match.group(1), port_match.group(2)
> port = port.split("-")[0]
> cidr_match = cidr_re.search(cidr)
> cidr = cidr_match.group(1)
> return dict(port=port, proto=proto, cidr=cidr)
>
> >>> get_data("SecurityGroup:default sg-e1304484 inbound:
> IPPermissions:tcp(80-80)  source: [67.184.225.222/32]")
> {'cidr': '67.184.225.222/32', 'proto': 'tcp', 'port': '80'}
> >>> get_data("SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
> IPPermissions:-1(None-None)  source: [sg-e632d982-995635159130]")
> {'cidr': 'sg-e632d982-995635159130', 'proto': '1', 'port': 'None'}
>
>
> ​You can alter this and add whatever extra checks you need as Chris A
> mentioned (when proto is -1 and port is None-None, or the icmp case). This
> is just a very crude example, but hopefully you get the drift.
>
> Most text parsing problems can easily be solved with these simple tools.
> Fire up your shell and test it - this is really the best way to learn how
> to do something like this.
>
>
> On Tue, Jul 21, 2015 at 5:12 PM, max scalf <oracle.blog3 at gmail.com> wrote:
>
>> Hello all,
>>
>> For Each SecurityGroup, how can i convert that into a List that in turn
>> will have a dictionary of the cidr block, protocol type and the port...so
>> from output below, the SecurityGroup called "default" had 2
>> rules...allowing TCP port from 80 and 5500 to the source IP and then
>> SecurityGroup called "Pub_HDP_SG" had only one rule...so on and so
>> forth....here is the output that i am trying to get out in the form of a
>> list....
>>
>> what I am planning to do is, take the list(and nested dictionary) and
>> pass that to a function that will in turn spitout a cloudformation template
>> using troposphere (something like "
>> http://imil.net/wp/2015/06/04/rock-your-cloudformation-with-troposphere-and-boto/
>> ")
>>
>>
>> For Better Readablity (http://pastebin.com/rT6Aswwz)
>>
>> import boto.ec2
>>
>> sgs = boto.ec2.connect_to_region('us-east-1').get_all_security_groups()
>>
>> for sg in sgs:
>>
>>     for rule in sg.rules:
>>
>>         print sg, sg.id, "inbound:", rule, " source:", rule.grants
>>
>>
>> SecurityGroup:default sg-e1304484 inbound: IPPermissions:tcp(80-80)
>>  source: [67.184.225.222/32]
>>
>> SecurityGroup:default sg-e1304484 inbound: IPPermissions:tcp(5500-5500)
>>  source: [67.184.225.222/32]
>>
>> SecurityGroup:Pub_HDP_SG sg-e632d982 inbound: IPPermissions:tcp(80-80)
>>  source: [0.0.0.0/0]
>>
>> SecurityGroup:sg3-MySecurityGroup-LB0QF9UQAOEF sg-4fe73728 inbound:
>> IPPermissions:tcp(22-22)  source: [0.0.0.0/0]
>>
>> SecurityGroup:sg3-MySecurityGroup-LB0QF9UQAOEF sg-4fe73728 inbound:
>> IPPermissions:tcp(80-80)  source: [0.0.0.0/0]
>>
>> SecurityGroup:RDP Rule - open everyone  sg-42d58d27 inbound:
>> IPPermissions:-1(None-None)  source: [0.0.0.0/0]
>>
>> SecurityGroup:us-east-open-all sg-97ffa7f2 inbound:
>> IPPermissions:tcp(22-22)  source: [10.0.20.100/32]
>>
>> SecurityGroup:us-east-open-all sg-97ffa7f2 inbound:
>> IPPermissions:tcp(53-53)  source: [10.0.20.100/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:-1(None-None)  source: [sg-e632d982-995635159130]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:tcp(22-22)  source: [67.184.225.222/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:tcp(1024-65535)  source: [10.0.20.100/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:tcp(80-80)  source: [24.12.30.198/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:udp(138-138)  source: [10.0.20.100/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:udp(53-53)  source: [24.12.30.198/32]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:tcp(30015-30015)  source: [0.0.0.0/0]
>>
>> SecurityGroup:wordpress-app-SG sg-99c4befc inbound:
>> IPPermissions:icmp(-1--1)  source: [10.0.20.100/32]
>>
>> SecurityGroup:default sg-c65a20a3 inbound: IPPermissions:-1(None-None)
>>  source: [sg-c65a20a3-995635159130]
>>
>> SecurityGroup:default sg-c65a20a3 inbound: IPPermissions:-1(None-None)
>>  source: [sg-99c4befc-995635159130]
>>
>> SecurityGroup:sg3-MySecurityGroup2-1HGPN4UF57XN6 sg-4ee73729 inbound:
>> IPPermissions:tcp(22-22)  source: [192.168.1.12/32]
>>
>> SecurityGroup:AWS-AMI-SG sg-35568d51 inbound: IPPermissions:tcp(22-22)
>>  source: [0.0.0.0/0]
>>
>> SecurityGroup:launch-wizard-2 sg-932255f6 inbound:
>> IPPermissions:tcp(22-22)  source: [10.0.20.100/32]
>>
>> SecurityGroup:launch-wizard-2 sg-932255f6 inbound:
>> IPPermissions:tcp(443-443)  source: [0.0.0.0/0]
>>
>> >>>
>>
>>
>> Here is the output i am looking for....
>>
>>
>> rule1 = [{
>>
>>     'cidr': '67.184.225.222/32',
>>
>>     'proto': 'tcp',
>>
>>     'port': 80
>>
>> },{
>>
>>     'cidr': '67.184.225.222/32',
>>
>>     'proto': 'tcp',
>>
>>     'port': 5500
>>
>> }]
>>
>>
>> rule2 = [{
>>
>>     'cidr': '[0.0.0.0/0',
>>
>>     'proto': 'tcp',
>>
>>     'port': 80
>>
>> }]
>>
>>
>> rule3 = [{
>>
>>     'cidr': '0.0.0.0/0',
>>
>>     'proto': 'tcp',
>>
>>     'port': 22
>>
>> },{
>>
>>     'cidr': '0.0.0.0/0',
>>
>>     'proto': 'tcp',
>>
>>     'port': 80
>>
>> }]
>>
>>
>>
>> --
>> https://mail.python.org/mailman/listinfo/python-list
>>
>>
>
>
> --
> *Pablo Lucena*
>
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